From the back of the rules: "The Vehicle Manual adds an exciting new dimension to your Warhammer 40,000 games. It updates and expands the vehicle rules from the Warhammer 40,000 rulebook, and allows you to use any of the model vehicles produced by Citadel Miniatures for Warhammer 40,000 in your games" Along with the Battle Manual the precursor to Warhammer 40,000 2nd edition. Included a 32-page rulebook and 30 "Datafax" sheets for various vehicles in the game. Also included the transparent "vehicle targeting grid" which was truly a unique piece of GW game development. This was the last book for 1st edition. Expands: Warhammer 40,000: Rogue Trader